A graft compatibilizer is a substance that forms a connection between two incompatible materials. It has some significant advantages that make it widely used in a variety of applications:

1. Enhance interface adhesion: Graft compatibilizers can form a connection between two incompatible materials and enhance their interface adhesion. This is key to achieving better performance in composites.

2. Improve the stability of the mixture: In the polymer mixture, the graft compatibilizer can improve its stability. This is essential to ensure the uniformity, consistency and stability of the mixture during long-term use.

3. Improve performance and properties: Some key properties and properties of the material can be improved through the use of graft compatibilizers. This includes strength, wear resistance, chemical resistance, etc.

4. Expand the scope of application: The use of graft compatibilizers can make the originally incompatible materials can be used together, thus expanding the scope of application of these materials. This is an important technique in materials engineering.

5. Reduce waste: By enabling incompatible materials to be effectively combined together, graft compatibilizers can reduce waste in the production process and improve material utilization.

In general, graft compatibilizers play an important role in improving material properties, improving the stability of material mixtures and expanding the application range of materials.